I'm having problems on my iPod nano (3rd Gen). I have a couple of album covers that arn't on iTunes, so i downloaded the artwork to my computer from various places and put them onto iTunes by dragging the pic onto the bottom left(like it says to). Now that seems to work as the album cover now displays for the songs but it won't sync with the iPod. the music will go on fine but not the artwork....can anybody help me?